Hisao Hachisuka

Person

Ibaraki-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Method of treating reverse osmosis membrane element, and reverse os...
- Patent number 6,821,430
- Issue date Nov 23, 2004
- Nitto Denko Corporation
- Masaaki Andou
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Spiral wound type separation membrane element
- Patent number 6,565,747
- Issue date May 20, 2003
- Nitto Denko Corporation
- Takuji Shintani
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Reverse osmosis composite membrane and reverse osmosis treatment me...
- Patent number 6,413,425
- Issue date Jul 2, 2002
- Nitto Denko Corporation
- Hisao Hachisuka
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Composite reverse osmosis membrane having a separation layer with p...
- Patent number 6,177,011
- Issue date Jan 23, 2001
- Nitto Denko Corporation
- Hisao Hachisuka
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Reverse osmosis composite membrane
- Patent number 6,026,968
- Issue date Feb 22, 2000
- Nitto Denko Corporation
- Hisao Hachisuka
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Separation membrane and method of producing the same, and shape mem...
- Patent number 5,910,357
- Issue date Jun 8, 1999
- Nitto Denko Corporation
- Hisao Hachisuka
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Polysulfone semipermeable membrane and method of manufacturing the...
- Patent number 5,888,605
- Issue date Mar 30, 1999
- Nitto Denko Corporation
- Hisao Hachisuka
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Polyimide semipermeable membrane
- Patent number 5,882,382
- Issue date Mar 16, 1999
- Nitto Denko Corporation
- Hisao Hachisuka
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Fluorine-containing polyquinazolone polymer and separation membrane...
- Patent number 5,859,182
- Issue date Jan 12, 1999
- Nitto Denko Corporation
- Hisao Hachisuka
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Fluorine-containing polyimide gas separation membrane and method of...
- Patent number 5,817,165
- Issue date Oct 6, 1998
- Nitto Denko Corporation
- Hisao Hachisuka
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Laminated asymmetric membrane and method for manufacturing the same
- Patent number 5,811,196
- Issue date Sep 22, 1998
- Nitto Denko Corporation
- Hisao Hachisuka
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Method of selectively separating unsaturated hydrocarbon
- Patent number 5,749,943
- Issue date May 12, 1998
- Petroleum Energy Center
- Akira Shimazu
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Dope for cast formation and method of manufacturing the same
- Patent number 5,750,633
- Issue date May 12, 1998
- Nitto Denko Corporation
- Tomomi Ohara
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Gas separation method
- Patent number 5,709,733
- Issue date Jan 20, 1998
- Nitto Denko Corporation
- Hisao Hachisuka
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Method of manufacturing a polyimide-type gas permeation membrane in...
- Patent number 5,690,870
- Issue date Nov 25, 1997
- Nitto Denko Corporation
- Hisao Hachisuka
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Gas separating composite membrane and process for producing the same
- Patent number 5,647,894
- Issue date Jul 15, 1997
- Nitto Denko Corporation
- Tomomi Ohara
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Acid chloride
- Patent number 5,510,527
- Issue date Apr 23, 1996
- Nitto Denko Corporation
- Hisao Hachisuka
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Composite reverse osmosis membrane and novel acid chloride
- Patent number 5,336,409
- Issue date Aug 9, 1994
- Nitto Denko Corporation
- Hisao Hachisuka
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
Method of treating reverse osmosis membrane element, and reverse os...
- Publication number 20030066805
- Publication date Apr 10, 2003
- Masaaki Andou
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

Hisao Hachisuka

Person

Patents Grantslast 30 patents

Method of treating reverse osmosis membrane element, and reverse os...

Spiral wound type separation membrane element

Reverse osmosis composite membrane and reverse osmosis treatment me...

Composite reverse osmosis membrane having a separation layer with p...

Reverse osmosis composite membrane

Separation membrane and method of producing the same, and shape mem...

Polysulfone semipermeable membrane and method of manufacturing the...

Polyimide semipermeable membrane

Fluorine-containing polyquinazolone polymer and separation membrane...

Fluorine-containing polyimide gas separation membrane and method of...

Laminated asymmetric membrane and method for manufacturing the same

Method of selectively separating unsaturated hydrocarbon

Dope for cast formation and method of manufacturing the same

Gas separation method

Method of manufacturing a polyimide-type gas permeation membrane in...

Gas separating composite membrane and process for producing the same

Acid chloride

Composite reverse osmosis membrane and novel acid chloride

Patents Applicationslast 30 patents

Method of treating reverse osmosis membrane element, and reverse os...